Power supply switching apparatus

A power supply switching apparatus that is used to switch a power supply in a power supply system that includes a power supply unit, a power storage unit, and a power path that is a path for supplying power from the power supply unit, the power supply switching apparatus comprising:

• a first conductive path that is a path for receiving power supplied from the power path;
• a second conductive path that is a path for supplying power that is based on the power storage unit;
• a third conductive path that is a path for supplying power that is based on the power storage unit and is different from the second conductive path;
• a fourth conductive path that is a path for receiving power supplied from the power path;
• a first output path that is a path for supplying power to a first load;
• a second output path that is a path for supplying power to a second load;
• a first switching unit that is configured to supply power from the first conductive path to the first output path at the time of a predetermined first state where the voltage of the first conductive path is greater than the voltage of the second conductive path, and supply power from the second conductive path to the first output path at the time of a predetermined second state where the voltage of the first conductive path is smaller than the voltage of the second conductive path;
• a second switching unit that is configured to supply power from the fourth conductive path to the second output path at the time of a predetermined third state where the voltage of the fourth conductive path is greater than the voltage of the third conductive path, and supply power from the third conductive path to the second output path at the time of a predetermined fourth state where the voltage of the fourth conductive path is smaller than the voltage of the third conductive path;
• and
• an element unit that is configured to allow a current to flow from the second conductive path to the third conductive path in the case of a predetermined state where the voltage of the third conductive path is smaller than the voltage of the second conductive path, and otherwise block a current from flowing from the second conductive path to the third conductive path.